ios - UITextfield leftView/rightView padding on iOS7

Question

The leftView and rightView views of an UITextField on iOS7 are really close to the textfield border.

How may I add some (horizontal) padding to those items?

I tried modifying the frame, but did not work

uint padding = 10;//padding for iOS7
UIImageView * iconImageView = [[UIImageView alloc] initWithImage:iconImage];    
iconImageView.frame = CGRectMake(0 + padding, 0, 16, 16);
textField.leftView = iconImageView;

Please, note that I'm not interested in adding padding to the textfield's text, like this Set padding for UITextField with UITextBorderStyleNone

Answer 1

A much simpler solution, which takes advantage of contentMode:

    arrow = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"down_arrow"]];
    arrow.frame = CGRectMake(0.0, 0.0, arrow.image.size.width+10.0, arrow.image.size.height);
    arrow.contentMode = UIViewContentModeCenter;

    textField.rightView = arrow;
    textField.rightViewMode = UITextFieldViewModeAlways;

In Swift 3,

    let arrow = UIImageView(image: UIImage(named: "arrowDrop"))
    if let size = arrow.image?.size {
        arrow.frame = CGRect(x: 0.0, y: 0.0, width: size.width + 10.0, height: size.height)
    }
    arrow.contentMode = UIViewContentMode.center
    self.textField.rightView = arrow
    self.textField.rightViewMode = UITextFieldViewMode.always